Hi William,
Welcome to AH. You will find out lots of information about Africa on this great website.
I do not know the owner of JKO Safaris personally but i have only heard good things of them.
With that said i would like to throw my hat into the ring and give you some information about us. We are based in the Limpopo Province of SA about three hours North west of JHB. We have three properties that are owned privately by us. They comprise of over 70,000 acres.
Much like yourself, I have had three young hunters from the UK over the last two years pretty much doing what you are doing Getting the important stuff out the way before life happens!! Two hunted in 2018 before they enlisted in the army and the third hunted a Sable package last year. He will be returning in August to hunt Buffalo and some more plains game. References are available at your request. If you are interested in a great hunt and true hunting experience, I would happily put a quote together for you.